High-resolution ecosystem changes pacing the millennial climate variability at the Middle to Upper Palaeolithic transition in NE-Italy

0574175 - BÚ 2024 RIV US eng J - Článek v odborném periodiku
Badino, F. - Pini, R. - Ravazzi, C. - Chytrý, M. - Bertuletti, P. - Bortolini, E. - Dudová, Lydie - Peresani, M. - Romandini, M. - Benazzi, S.
High-resolution ecosystem changes pacing the millennial climate variability at the Middle to Upper Palaeolithic transition in NE-Italy.
Scientific Reports. Roč. 13, č. 1 (2023), č. článku 12478. ISSN 2045-2322. E-ISSN 2045-2322
Institucionální podpora: RVO:67985939
Klíčová slova: lake Fimon * paleolithic * modern analogues
Obor OECD: Ecology
Impakt faktor: 4.6, rok: 2022
Způsob publikování: Open access
https://doi.org/10.1038/s41598-023-38081-1

Observation of high-resolution terrestrial palaeoecological series can decipher relationships between past climatic transitions, their efects on ecosystems and wildfre cyclicity. Here we present a new radiocarbon dated record from Lake Fimon (NE-Italy) covering the 60–27 ka interval. Palynological, charcoal fragments and sediment lithology analysis were carried out at centennial to sub-centennial resolutions. Identification of the best modern analogues for MIS 3 ecosystems further enabled to thoroughly reconstruct structural changes in the vegetation through time. This series also represents an “of-site” reference record for chronologically well-constrained Palaeolithic sites documenting Neanderthal and Homo sapiens occupations within the same region. Neanderthals lived in a mosaic of grasslands and woodlands, composed of a mixture of boreal and broad-leaved temperate trees analogous to those of the modern Central-Eastern Europe, the Southern Urals and central-southern Siberia. Dry and other grassland types expanded steadily from 44 to 43 ka and peaked between 42 and 39 ka, i.e., about the same time when Sapiens reached this region. This vegetation, which finds very few reliable modern analogues in the adopted Eurasian calibration set, led to the expansion of ecosystems able to sustain large herds of herbivores. During 39–27 ka, the landscape was covered by steppe, desert-steppe and open dry boreal forests similar to those of the modern Altai-Sayan region. Both Neanderthal and Sapiens lived in contexts of expanded fire-prone ecosystems modulated by the high-frequency climatic cycles of MIS 3.
Trvalý link: https://hdl.handle.net/11104/0348426